81 lines
1.9 KiB
Nix
81 lines
1.9 KiB
Nix
let
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sourcesJson = (builtins.fromJSON (builtins.readFile ./sources.json));
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in
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{
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lib,
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kaem,
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ln-boot,
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mes,
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buildPlatform,
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}:
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let
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pname = "mes-libc";
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inherit (mes.compiler) version;
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arch =
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{
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i686-linux = "x86";
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x86_64-linux = "x86_64";
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}
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.${buildPlatform.system};
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sources = sourcesJson."${arch}.linux.gcc";
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inherit (sources) libtcc1_SOURCES libc_gnu1_SOURCES libc_gnu2_SOURCES;
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# Concatenate all source files into a convenient bundle
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# "gcc" variants of source files (eg. "lib/linux/x86-mes-gcc") can also be
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# compiled by tinycc
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#
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# Passing this many arguments is too much for kaem so we need to split
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# the operation in two
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#
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# We also vendor a copy of ldexpl. We do not `fetchurl` it as the mes GitLab
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# often has force pushes and links are thus unstable.
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firstLibc = libc_gnu1_SOURCES + " " + ./ldexpl.c;
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lastLibc = libc_gnu2_SOURCES;
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in
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kaem.runCommand "${pname}-${version}"
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{
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inherit pname version;
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extraPath = "${ln-boot}/bin";
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passthru.CFLAGS = "-std=c11";
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meta = {
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description = "Mes C Library";
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homepage = "https://www.gnu.org/software/mes";
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license = lib.licenses.gpl3Plus;
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teams = [ lib.teams.minimal-bootstrap ];
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platforms = [
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"i686-linux"
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"x86_64-linux"
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];
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};
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}
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''
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cd ${mes.srcPrefix}
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# mescc compiled libc.a
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mkdir -p ''${out}/lib/${arch}-mes
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# libc.c
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catm ''${TMPDIR}/first.c ${firstLibc}
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catm ''${out}/lib/libc.c ''${TMPDIR}/first.c ${lastLibc}
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# crt{1,n,i}.c
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cp lib/linux/${arch}-mes-gcc/crt1.c ''${out}/lib
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cp lib/linux/${arch}-mes-gcc/crtn.c ''${out}/lib
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cp lib/linux/${arch}-mes-gcc/crti.c ''${out}/lib
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# libtcc1.c
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catm ''${out}/lib/libtcc1.c ${libtcc1_SOURCES}
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# getopt.c
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cp lib/posix/getopt.c ''${out}/lib/libgetopt.c
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# Install headers
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${ln-boot}/bin/ln -s ${mes.srcPrefix}/include ''${out}/include
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''
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